TY - JOUR
T1 - Silica deposition induced by isolated aluminum ions bound on chelate resin as a model compound of the surface of microbes
AU - Bai, Shuqin
AU - Naren, Gaowa
AU - Noma, Hiroaki
AU - Etou, Mayumi
AU - Ohashi, Hironori
AU - Fujino, Yasuhiro
AU - Doi, Katsumi
AU - Okaue, Yoshihiro
AU - Yokoyama, Takushi
N1 - Funding Information:
The present work is supported by the National Natural Science Foundation of China (No. 21066006 ), Inner Mongolia Natural Science Foundation (No. 2010MS0617 ) and the SPH-IMU (No. Z20090128 ). The present work is also partially supported by a Grant-in-Aid for the Global COE Program , “Science for Future Molecular Systems” from the Ministry of Education, Culture, Science, Sports and Technology of Japan. The authors are grateful for financial support from Kyushu University Interdisciplinary Programs in Education and Projects in Research Development . The observation of SEM was made at the Center of Advanced Instrumental Analysis, Kyushu University.
PY - 2012/6/15
Y1 - 2012/6/15
N2 - To elucidate the mechanism of silica biodeposition in hot spring water, which is induced by Al 3+ ions bound to the surface of microbes, a chelate resin (Chelex 100) was used as a model compound of the surface of microbes. No silicic acid was adsorbed on the Na type Chelex 100, whereas silicic acids were significantly adsorbed to the Al type Chelex 100. In the Al type Chelex 100, the Al 3+ ions were present as 1:1 tridentate complex with iminodiacetate (IDA) group. After adsorption of silicic acid to Al type Chelex 100, a IDAAlOSi(OH) 3 site formed. The site acted as a template for the successive adsorption of silicic acids to form silica sheets around Al type Chelex 100 particles. In conclusion, Al 3+ ions bound to the surface of microbes play a key role as a trigger for the biodeposition of silica in hot spring water.
AB - To elucidate the mechanism of silica biodeposition in hot spring water, which is induced by Al 3+ ions bound to the surface of microbes, a chelate resin (Chelex 100) was used as a model compound of the surface of microbes. No silicic acid was adsorbed on the Na type Chelex 100, whereas silicic acids were significantly adsorbed to the Al type Chelex 100. In the Al type Chelex 100, the Al 3+ ions were present as 1:1 tridentate complex with iminodiacetate (IDA) group. After adsorption of silicic acid to Al type Chelex 100, a IDAAlOSi(OH) 3 site formed. The site acted as a template for the successive adsorption of silicic acids to form silica sheets around Al type Chelex 100 particles. In conclusion, Al 3+ ions bound to the surface of microbes play a key role as a trigger for the biodeposition of silica in hot spring water.
UR - http://www.scopus.com/inward/record.url?scp=84860588389&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860588389&partnerID=8YFLogxK
U2 - 10.1016/j.colsurfb.2012.02.044
DO - 10.1016/j.colsurfb.2012.02.044
M3 - Article
C2 - 22459927
AN - SCOPUS:84860588389
SN - 0927-7765
VL - 95
SP - 208
EP - 213
JO - Colloids and Surfaces B: Biointerfaces
JF - Colloids and Surfaces B: Biointerfaces
ER -